Docgen

Documentation Generator

Generate comprehensive documentation for .NET/C# codebases.

Prerequisites

Scripts in scripts/:

• scan_dotnet.py - Analyze project structure, patterns, frameworks
• find_endpoints.py - Extract ASP.NET API endpoints

Workflow

Phase 1: Analysis

1.1 Scan Codebase Structure

python3 scripts/scan_dotnet.py /path/to/codebase

Output: JSON with solution structure, frameworks, packages, detected patterns (Repository, CQRS, DDD, MediatR).

1.2 Extract API Endpoints (if web project)

python3 scripts/find_endpoints.py /path/to/codebase

Output: JSON with controllers, routes, parameters, response types.

1.3 Identify Key Files

Always read:

• README.md, CLAUDE.md (existing context)
• Program.cs or Startup.cs (configuration)
• Domain entities (in Domain/Core projects)

For Clean Architecture: Domain → Application → Infrastructure layers For libraries: Public API surface, extension methods, configuration classes

Phase 2: Planning

Determine documents to generate:

Create progress tracker at /path/to/codebase/docs/.docgen-progress.json.

Phase 3: Generation

For each document:

1. Read relevant source files
2. Generate markdown following templates in references/
3. Write to /path/to/codebase/docs/
4. Update progress tracker

Phase 4: Finalization

1. Generate docs/README.md navigation
2. Generate docs/GLOSSARY.md (if DDD)
3. Mark progress complete

Reference Templates

Detailed templates for each document type:

• Architecture: See architecture.md
• API Reference: See api-reference.md
• Domain Model: See domain-model.md
• Getting Started: See getting-started.md

Output Structure

docs/
├── README.md                 # Navigation index
├── GLOSSARY.md              # Domain terms (if applicable)
├── .docgen-progress.json    # Progress tracking
├── architecture/
│   └── overview.md
├── api/
│   └── README.md
├── domain/
│   └── models.md
└── getting-started.md

Quality Standards

• Reference actual file paths and class names
• Include real code examples from the codebase
• Use Mermaid diagrams for architecture
• Define domain terms in glossary
• Cross-reference between documents